Wire tube 200 is a ring. This wire is 80 cm long tube. If 10 mA current strength of the magnetic field inside the wire to wire, tube, pipe go on is how?

Question

mos1635 · Answer

i don't get it

ujjwal · Answer

It is grammar which is making the question more difficult. can you re-post the question with grammatical errors corrected? You can take help from a person who has a good command in English. 
or, post your question in any language you know. At least few will understand!